c# - 迁移 : No DbContext was found in assembly

Question

使用 VS Community 2017。我尝试创建初始迁移，并显示错误消息:

Both Entity Framework Core and Entity Framework 6 are installed. The Entity Framework Core tools are running. Use 'EntityFramework\Add-Migration' for Entity Framework 6. No DbContext was found in assembly 'Test_Project'. Ensure that you're using the correct assembly and that the type is neither abstract nor generic.

...我的 dbcontext 中的代码:

protected override void OnModelCreating(DbModelBuilder mb)
{
    base.OnModelCreating(mb);

    mb.Entity<Stuff>().ToTable("Stuff");

}

public DbSet<Stuff> Stuff{ get; set; }

Answer 1

在包管理器控制台中，选择定义了 DbContext 的项目并运行命令 add-migration initial。例如:public class SomeContext : DbContext